121 results about "Toxic pollution" patented technology

This invention discloses a nourishing slow-released type organic bulking agent for processing water and its preparation. This bulking agent includes 60-100 parts of high polymer basis material, 1-15 parts of nutrient substance, 1-10 parts of slow-releasing control substance, and 1-10 parts of dispersing lubricant. When prepare, lubricate slow-releasing control substance with 0.5-3 parts of dispersing lubricant; lubricate high polymer basis material with remaining dispersing lubricant, add in stirring machine, mix with above mixture, mix uniformly, transfer mixture into stirring dipper of plastic injection molding machine, extrude and form by bulking agent tooting. Organic bulking agent prepared by this invention slow-releases nutrient substance that is required for microbes forming biofilm. It has characteristics of fast forming biofilm, more microbial biomass, and activity. It is especially suitable for oxygen degrading process of waste water that contains difficult degraded toxic pollutant.

The invention relates to a method for preparing seaweed biological long-acting fertilizer. Seaweed dregs from which seaweed gum, carrageenan and agar are extracted are taken as an active carrier so as to turn waste into treasure, and a plurality of seaweed bio-active substances contained in seaweed extract and chelated-type nutritive elements or nutrients easily absorbed by plants are all wrapped up to form a slow-release system so as to ensure slow long-term release of fertilizer efficiency and provide plants with demand for nutrition throughout a growing season. The method extracts nutrient components in seaweed adopting a low-temperature extraction process, thereby ensuring that active components of the seaweed are not destroyed and increase the content of the effective nutrient components of products. The method adopts a special biochemical process, adds a multifunctional fermentation strain which has synergy and is formed mainly by compounding fungi, yeast, actinomycetes and bacterial beneficial microorganisms which are not mutually antagonistic and cooperate during fermentation, and effectively extracts biological nutrient components of the seaweed through a large amount of powerful biochemical reaction during reproduction. The seaweed biological long-acting fertilizer belongs to non-toxic pollution-free purely-natural seaweed bio-organic fertilizer.

The invention discloses a drilling fluid, which comprises bentonite, a high temperature resistance increased cutting fluid loss agent, a high temperature resistance viscosified fluid loss agent, a shale inhibitor, hollow glass microballoon and water. The drilling fluid has the advantages that the drilling fluid with low density possesses good stability, the high resistance capability can reach 180 DEG C, the drilling fluid possesses the effects of lubrication, collapse resistance and oil gas layer protection, no fluorescence is generated, no toxic pollution is generated, the environmental protection performance is good, and the preparation method is simple and easy to carry out.

The invention provides a technology and method for preparing solution used for preparing graphene in a liquid phase, comprising the following six steps of: firstly, directly mixing water and alcohol in predetermined proportion, thus the solution used for preparing graphene in the liquid phase can be obtained; secondly, dispersing graphite powder into the solution, thus graphite dispersion is obtained; thirdly, treating by adopting ultrasonic cavitation or jet flow cavitation; fourthly, standing the treated solution, and taking the solution at the upper layer; fifthly, carrying out high-speed centrifugal separation on the solution at the upper layer; and sixthly, collecting supernate at the upper layer after the high-speed centrifugal separation is carried out, thus stable graphene dispersion is obtained. By adopting the solution directly mixed by the water and the alcohol in the invention, the graphene can be prepared in non-toxic pollution-free green solvent with low boiling point, equipment investment is less, raw materials are available, production safety is high, operation is simple and convenient, environmental protection can be realized, yield is considerable, reproducibility is good, and the technology and method provided by the invention are applicable to laboratory study and are also applicable to large-scale industrial production.

The invention provides an aqueous damping paint, comprising the following ingredients: 25-35 wt% of acrylic acid emulsion, 8-10 wt% of PUD, 4-6 wt% of protective colloid, 40-50 wt% of filling material, and 5-15 wt% of deionized water. The invention also provides a method for preparing the aqueous damping paint. The aqueous damping paint is a multi-ingredient damping paint, wherein, the base material comprises two polymers, latex interpenetrating polymer network (LIPN) is used for preparing, so that some defects of polymer blend are overcome, compatibility of ingredients is improved, and the damping temperature range is widen. According to the invention, water is used as the diluent, so that poisonous organic solvent causing environmental pollution is avoided, and the preparation method is simple. The glass transition temperature transition region is larger than the actual used temperature range of the aqueous damping paint, and the paint has high elastic modulus, large elongation at break, and large tensile strength in the used temperature range, and can form a thick coating.

The invention discloses a monitoring and identifying evaluation method for group biotoxicity in printing and dyeing wastewater and belongs to the field of biotoxicity identification. The method comprises the following steps: screening photogenic bacteria, zebrafish larvae, zebrafish embryos and chlorella as test organisms; and performing risk and toxicity reduction evaluation on the printing and dyeing wastewater by adopting group biotoxicity tests and combining with a toxicity evaluation method, and constructing a toxicity identification evaluation system by combining with a TIE technology according to the wastewater contamination characteristics and results. According to the method disclosed by the invention, the group biotoxicity tests comprising three trophic levels such as decomposer,producer and consumer are performed for characterizing toxicities of the printing and dyeing wastewater, and the problem that a single biotoxicity test does not have representativeness is solved. Themethod has the advantages of being comprehensive, simple, high-efficiency, capable of controlling from the source, high in safety and the like, can be widely applied to researching and evaluating influences of toxic pollutants on the ecological environment, and provides a certain basis for ecological risk assessment.

The invention provides an extracting agent for removing toxic pollutants of 2.4-D and 2.4-dichlorophenol in 2.4-D pesticide production wastewater, which mainly comprises a complexing agent, a cosolvent and a diluent. The extraction process can adopt the traditional extraction process, and the extracting agent can also be used as a supporting liquid membrane. The extracting agent provided by the invention has the advantages of high extraction efficiency, low effluent wastage rate, easy engendering transformation, low regeneration loss and the like, and is a key technology for solving the treatment and recovery of 2.4-D pesticide production waste water.

The invention discloses a drill liquid lubricating anti-sloughing agent and preparation method thereof. The lubricating anti-sloughing agent is composed of liquid wax 10 to 30 parts, non-ionic surface activator 1 to 3 parts, polyatomic alcohol 5 to 15 parts, polymer 0.5 to 1 part according to 100 weight parts, and water as residue. The preparation method is: putting liquid wax, non-ionic surface activator, and polyatomic alcohol into reactor, heating the mixture to 60 deg C. to 80 deg C., agitating the mixture for 30min with agitation speed controlled in the ranged of 1000 to 2000 rpm; adding polymer-dissolved polymer into the reactor, agitating the mixture for 60 to 120 min continuously at 60 to 80 deg C. with agitation speed controlled in 1000 to 2000 rpm, cooling it to room temperature, to obtain the product of lubricating anti-sloughing agent. The lubricating anti-sloughing agent of the invention is provided with good stability, with excellent lubricating, anti-sloughing and oil gas layer-protecting effects in drilling liquid, and good environmental protection property without fluorescence, toxic pollution. The adopted materials are easy to obtain. The preparation method is simple, easy to implement with low cost.

The invention provides a method for preparing a germanium nano array by inducing ionic liquid electro-deposition with a laser, and belongs to the technical field of preparation methods of the germanium nano array. The method solves the problems that a conventional preparation method of the germanium nano array requires a high temperature, is complex in preparation technology and is toxic. According to the method disclosed by the invention, an ionic liquid electro-deposition technology and a laser irradiation technology are combined, non-toxic pollution-free green ionic liquid 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide is used as a solvent, Gecl4 is used as an electrolyte, the electrolyte is irradiated by a pulsed laser, and a one-step method is adopted to prepare the germanium nano array in an electro-deposition manner. The preparation method does not require the high temperature and is simple in technology, convenient to operate and easy to realize.

The invention discloses an insecticide d-phenothrin degradation strain, as well as a microbial agent and a degradation process thereof. The strain is Pseudomonas fulva strain P31, and is preserved inChina Centre for Type Culture Collection on May 12th, 2017, and the preservation number is CCTCC NO: M2017256. The strain and the microbial agent thereof have a very good degradation effect on a plurality of pyrethriods pesticides, particularly on d-phenothrin; the degradation rate of the strain and the microbial agent of the strain to 50mg / L d-phenothrin reaches 86.4 percent within 48 hours, andthe 50mg / L d-phenothrin can be completely degraded within 72 hours; the residual amount of the d-phenothrin in a water body or soil can be reduced by 77 percent or above within a short time by directly applying the microbial agent; the microbial agent can be used for repairing environments, such as the water body and the soil which are polluted by the pyrethriods pesticides; the problems that residue of pesticides exceeds a standard and causes environmental pollution in agricultural production are solved; non-toxic pollution-free green agricultural products are produced.

The invention discloses a water quality monitoring method based on a continuous-flow membraneless biocathode microbial fuel cell. The continuous-flow membraneless biocathode microbial fuel cell comprises an anode detection unit, a cathode detection unit and a cathode-anode communication pipe; a water sample is pretreated before entering the anode detection unit of the continuous-flow membranelessbiocathode microbial fuel cell; the water sample then enters the cathode detection unit via the cathode-anode communication pipe and flows out of the cathode detection unit; output current of the cathode-anode communication pipe, introduced to the pretreated water sample under test and a standard water sample so as to judge water quality condition of the water sample under test. The water qualitymonitoring method helps effectively monitor single toxic pollution, organic overload, toxic pollutant-organic composite pollution and other water quality anomalies, and is more widely applicable.

The invention provides a surface spouting photocatalytic material enrichment method based on magnetic attraction. The method comprises the following steps: (1) preparing a hydrophilic magnetic composite nanometer photocatalyst with high-efficiency photocatalytic degradation performance; (2) preparing building surface spouting liquid containing the magnetic composite nanometer photocatalyst; (3) performing building surface pretreatment; (4) building surface slurry spraying; (5) performing magnetic attraction enrichment on a photocatalytic material in the surface spraying slurry; (6) spouting liquid curing. The hydrophilic magnetic composite nanometer photocatalyst is enriched on the coating surface under the effect of magnetic attraction of an applied magnetic field, a photocatalytic surface with high density, high abundance and high exposure area is formed, the material has strong adsorption and photocatalytic degradation performance on toxic pollutants, and environmental pollutants are efficiently removed at low consumption.

The invention discloses a leaching method of copper-cobalt sulfide ore. The leaching method comprises the following steps of: (1) grinding raw ore to obtain copper-cobalt sulphide ore with preset fineness; (2) mixing the copper-cobalt sulphide ore obtained in the step (1) and sulfuric acid solution according to the solid-liquid ratio (2-10):1 and pulping to obtain ore pulp; (3) adding sodium chlorate into the ore pulp, stirring the ore pulp at a set temperature, leaching for 2-10 hours under normal pressure, and filtering to obtain leaching solution. The leaching method disclosed by the invention has the beneficial effects that the copper-cobalt sulfide ore is leached by adopting a sodium chlorate-sulfuric acid system under the normal pressure, so that the requirement for equipment is low,the production period is short, the energy consumption is low, high-efficiency leaching of the copper-cobalt sulfide ore with low grade and complex components is realized, the cobalt leaching rate isup to 99% or above, and the cost and the risk of enterprises are greatly reduced; the intermediate product of an oxidizing agent is ClO2 which is internationally-recognized safe and non-toxic pollution-free disinfectant, and no pollution is caused in the whole leaching process, so that the purpose of clean production is realized.

A polymer-modified asphalt waterproof coating relates to the technical field of building materials, and is composed of the following compositions by weight: 30-50 Kg of deionized water, 15-25 Kg of titanium dioxide, 10-20 Kg of silicon dioxide, 4-6 Kg of an anti-foaming agent, 4-6 Kg of a modifier, 4-6 Kg of a thickening agent, 4-6 Kg of an emulsifier, 4-6 Kg of a hydrophobic agent and 40-60 Kg of asphalt. The coating is applicable to waterproof engineering of industrial building roofs, water proofing and seepage proofing of toilets, bathrooms and kitchens, waterproofing and moistureproofing engineering of basements, pools and refrigeration houses, and the like; the coating is a non-toxic pollution-free odorless environment-friendly product; and a film formed for the coating has the characteristics of high strength, toughness, water resistance, weather resistance, endurance, excellent performances and the like.

Contaminated drinking water and other liquids are decontaminated by contact with sorbents to remove toxic contaminants such as arsenic, as well as non-toxic contaminants. In regenerating the spent sorbents, the waste stream contains both toxic and non-toxic contaminants but only toxic components must be treated as hazardous waste and subjected to strict regulations for disposal. The inventive method regenerates spent sorbents in a process that minimizes the amount of hazardous waste for disposal. The bulk of contaminants are non-toxic and are first selectively removed from the spent sorbent, generating a non-hazardous waste stream. Toxic contaminants are then removed from the sorbent, generating a hazardous waste stream. Because the bulk of contaminants was removed in the first waste stream, the lower concentration of toxic contaminants in the second waste stream requires less material (e.g., ion exchange resin) for hazardous waste decontamination and disposition.

The invention provides a degradable heat-preservation mulching film containing cow dung. The degradable heat-preservation mulching film is prepared from the following raw materials: a cow dung base material, pullulan, polyether modified organic silicon and propylene glycol methyl ether acetate. A preparation process comprises the following steps: killing ova and bacteria in the cow dung; removingsand and removing impurities; carrying out solid-liquid separation; grinding; blending a base material; spraying a film and molding. The mulching film disclosed by the invention can be used for replacing a plastic mulching film to carry out agricultural planting; pollution-free organic fertilizer, which is easily absorbed by plants, can be formed by utilizing rapid post-decomposition and corrosion, and white and toxic pollution of an inorganic mulching film is reduced or avoided; the degradable heat-preservation mulching film has remarkable economic benefits and social benefits and has a goodapplication prospect.

The invention belongs to the field of biotechnology, and in particular relates to a development method of fluorescent protein transgenic zebra fish capable of highly sensitively monitoring water body PAHs by utilizing the cascade amplification effect. According to the method, a UAS-Gal4 gene expression regulation system is taken as a basis, a multiring aromatic hydrocarbon response element AhREs after optimization and reorganization is utilized for driving the expression of the upstream plasmid Ga14, and further, the expression of the fluorescent gene eGFP in the downstream UAS plasmid is regulated; meanwhile, the TALE-TF transcriptional activation enhancement technology is innovatively combined, the expression quantity of the eGFP gene is further enhanced by utilizing the TALE transcriptional activation effect, and then the purpose of increasing the fluorescence signals through multiple ways is achieved; finally, the low-copy induced fluorescent protein transgenic zebra fish with stable inheritance is obtained by utilizing the I-SceI wide-range nuclease transfer system, and the influences on the toxicity of the zebra fish are small; by manufacturing the fluorescent protein transgenic zebra fish highly sensitive to the environmental pollutants, the toxic pollutants in the water body can be easily, efficiently, sensitively and intuitively monitored.

The invention relates to the field of microorganisms, and particularly provides a microbial symbiotic culture inoculant and a preparation method and application thereof. The microbial symbiotic culture inoculant provided by the invention specifically comprises pseudomonas, bacillus subtilis, candida and xanthomonas. The inoculant is good in environmental adaptability and high in toxic pollution resistance, can be well applied to various petroleum pollution environments, achieves stable balance among strains through symbiotic culture, and can be prepared through large-scale fermentation. The target strains are co-cultured, a stable symbiotic system is formed by utilizing the interaction among the strains, the preparation method is simple, and the prepared microbial symbiotic culture inoculant is balanced and stable among the strains and high in environmental adaptability. The inoculant can treat petroleum sewage or petroleum sludge at a time, the treated petroleum sewage or petroleum sludge reaches the direct discharge standard, and the treatment cost is greatly reduced.

A mercury-free non-electronic type thermometer with a support structure comprises the support structure, a heat conducting layer, a temperature scale layer and a temperature sensing color-changing layer, wherein the heat conducting layer is located on the outer layer of the support structure and comprises a heat sensing portion and a temperature displaying portion, the temperature scale layer is marked on the surface of the temperature displaying portion or at the position above the temperature displaying part, and the temperature sensing color-changing layer is at least formed on the temperature displaying portion to cover the temperature scale layer. The heat sensing portion on the support structure senses the heat contact face of a user to conduct heat conducting flow to the temperature sensing color-changing layer at the temperature displaying portion, and the temperature sensing color-changing layer generates a color-changing area according to the temperature the heat flow corresponds to so as to expose a corresponding temperature scale value. The mercury-free non-electronic type thermometer with the support structure does not contain mercury so as to avoid toxic pollution, and simultaneously greatly reduces cost in comparison with an electronic thermometer. In addition, the mercury-free non-electronic type thermometer with the support structure does not need to be provided with a chemical battery so as to be capable of avoiding causing insufficient power during use due to the fact that the thermometer causes loss of the chemical battery caused by long time no use while avoiding polluting the environment.

The invention relates to a method for removing toxic pollution as decabrans diphenyl oxide. Wherein, it mixes the decabrans diphenyl oxide, metal zinc powder, ammonium salt, and mellow solvent, and heats them into 65Deg. C to flux; the metal zinc powder reacts with ammonium salt to generate hydrogen gas; the decabrans diphenyl oxide is reduced by said hydrogen gas, to generate debrominate compound, as iodine diphenyl ether, etc, which are important chemical materials. The invention has simple process and easy operation.

The invention relates to a technical field of plastic, and specifically relates to degradable environment-friendly plastic. The invention aims at providing a degradable plastic raw material. A plastic product prepared with the raw material is used in production and living for reducing environment pollution. The plastic material comprises the components of, by mass: 35%-55% of PP resin, 30%-40% of vegetable fiber starch, 1-4% of a lubricant, 5%-10% of a plasticizer, and 3%-8% of a coupling agent. The lubricant is composed of Stearic acid and calcium stearate according to a weight ratio of 1:1. The plasticizer is any one selected from glycerol and urea. The coupling agent is isopropyl tri(dodecylbenzene sulfonyl)titanate. The plastic material provided by the invention is composed of non-toxic pollution-free raw materials. The prepared plastic is degradable, such that environment can be effectively protected.

The invention provides a method for applying walnut peel extracting solution in black wool dyeing. Walnut peel powder is taken and placed into a container, solvent is added for extraction, and suction filtering is carried out to obtain filtrate; and then wool is dyed by adopting a pre-mordanting method, thus black wool is obtained. According to the invention, the walnut peel extracting solution is adopted, ferrite is taken as a mordanting agent to dye the wool, and black of the dyed wool is pure. Meanwhile, the mordanting agent exists, colour fastness and dyeing rate are greatly improved, waste of resource is effectively reduced, and the black wool has non-toxic pollution-free environmental protection effects.

The invention discloses a preparation method of a fast drilling agent for drilling fluid, which can greatly increase the drilling speed. This fast drilling agent has a good ability to inhibit shale hydration expansion and dispersion, which is conducive to maintaining the stability of the wellbore; it has good high temperature resistance and anti-pollution ability, and can be used in medium-deep wells and deep wells; it can be used with water-based drilling fluid system Good compatibility, basically does not affect the rheological properties and fluid loss of drilling fluid; has a good effect of protecting oil and gas layers; non-toxic and non-polluting. The field application of drilling fluid fast drilling agent shows that the mechanical drilling rate can be increased by more than 20%, thereby shortening the drilling time, saving the drilling cost, and having good social and economic benefits.

The invention relates to a botanical pesticide for preventing and treating root rot of zanthoxylum bungeanum maxim, and a preparation method thereof, wherein the botanical pesticide comprises the following raw materials by weight: 30-40 parts of zanthoxylum bungeanum maxim processing leftovers, 25-35 parts of tobacco processing leftovers, 20-30 parts of tea leaf processing leftovers, 15-25 parts of melia azedarach leaves, 10-20 parts of coptis chinensis, 8-15 parts of nux vomica, 5-10 parts of radix sophorae flavescentis, 2-5 parts of garlic, 15-25 parts of kerosene and 80-120 parts of plant ash. According to the invention, the botanical pesticide prepared by the method can provide nutrition for zanthoxylum bungeanum maxim, improve the disease resistance of zanthoxylum bungeanum maxim, kill harmful substances, greatly reduce the root rot infection of zanthoxylum bungeanum maxim and effectively prevent and treat root rot caused by fusarium solani, does not cause toxic pollution to soil,and can greatly improve the yield and the quality of zanthoxylum bungeanum maxim; and the preparation method is simple and convenient to use, has good application value and environmental protection significance, is high in economic benefit, and is easy to popularize and apply.

The invention discloses an automobile air conditioner deodorization fumigation package, specifically relates to the technical field of air conditioner deodorization, and its components include 15-30 parts of epoxy soybean oil, 15-30 parts of sodium alginate, and 2-10 parts of polyglycerol fatty acid ester , 2‑10 parts of glycerol monostearate, 3‑60 parts of Chinese herbal medicine mixture; , Aconitum, Pinellia 10‑47 parts, Asarum, Lingxian, Zhiziguo, cinnamon, etc. The deodorizing fumigation package for automobile air conditioners prepared by the invention is made of raw materials selected from plants, is non-toxic and non-polluting, and can effectively remove peculiar smells generated by automobile air conditioners, and the deodorization fumigation package for automobile air conditioners can be reused through steam cooking, which is environmentally friendly and hygienic, and is better than simply using activated carbon. The effect is better and resources are saved.